I am using the modules 'oauth 1.0.1', 'oauth-python-twitter 1.0' and 'twitter 1.14.2'. These have been installed to Python 3.3 using Pip. There no longer seems to be a standard package called 'twitter.py' like the one used in the above link, but I am presuming that 'twitter 1.14.2' is an evolution of that.

I understand that the error itself is being generated because the oauthtwitter module is trying to reference something within the 'twitter' module called 'api' that it cant find, however I can see than an API module of the twitter package has been installed.